tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "rootDir": "src",
    "outDir": "types",
    "newLine": "LF",
    "lib": [
      "es2015",
      "es2016",
      "es2017",
      "dom",
      "scripthost"
    ],
    "moduleResolution": "node",
    "importHelpers": true,
    "baseUrl": "./",
    "paths": {
      "tslib": ["node_modules/tslib/tslib.d.ts"]
    },
    "declaration": true,
    "pretty": true,
    "sourceMap": true,
    "inlineSources": true,
    "noUnusedLocals": true,
    "skipLibCheck": true,
    "strictNullChecks": true,
    "noUnusedParameters": true,
    "removeComments": true,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    "stripInternal": true
  },
  "include": [
    "src/**/*",
    "./*.d.ts"
  ],
  "exclude": [
    "node_modules",
    "**/*.spec.ts",
    "dist",
    "es",
    "lib"
  ]
}